TeXquisite 0.126.0 — theorem math and low-memory recovery

Windows x64 preview focused on long preview stalls during continued typing.

Fixes a one-second cancellation loop that repeatedly discarded resident compiler startup and its warm preamble. Also preserves warm workers during obsolete error repairs, prevents rapid edit/reversal RPCs from dropping corrections, and anchors first-body paragraph selection at the verified native checkpoint.

A controlled 49,152-edit comparison covered six scenarios and sustained temporary errors. Per-scenario p99.9 improved from 1.59�38.28 s to 0.97�1.39 s; worst observed candidate delay was 1.49 s. There were no censored observations. The 300 ms target is not met: structural/boundary fallbacks and ordinary typing queued behind them still need work. Read TAIL-LATENCY.md and TAIL-LATENCY-RESULTS.json for exact results, workload limitations and the low-memory policy simulation.

Source and packaged app checks passed (90 selected unit/native checks, 17 integration/package reports), plus new queue/startup-deadline guards. Saving, automatic recovery, strict export, navigation, status bar and zoom/layout were checked. No private source or profile was uploaded.

Install TeX Live separately. Close the previous version normally before running this portable executable. Documents and settings remain in the existing local profile. This unsigned prerelease is not a claim of production readiness. Mac/Linux remain on their separately tested 0.123.0 release.

Downloads and their checksum/provenance/timing summaries are permanent release assets.

DPI coverage correction: the historical high-dpr tail job requested a scale through an unused environment variable. Its timing row is an additional theorem run, not verified 2.5-DPI coverage. The numerical measurements are unchanged. See the corrected coverage notes. Future tests explicitly pass and assert the actual scale factor.